Knowledgebase Article
| Knowledgebase > Unified Communications > SmartNode > SmartWare |
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| Why do I hear a crackling noise when using the G.729 codec? | |||
| Article Id #: 52 | |||
On the SmartNodes (SN-DTA/4V, 4110, 4120/4V, 4520, 463X, 465X 4830, 491X, 492X, 493X, IC-4FXS) is not possible to use two low-bit-rate codecs at the same time per device. Thus you must choose to use either G.723 or G.729 system wide. G.711 is always supported. The configuration commands are as follows: enable configure system ic voice 0 low-bitrate-codec g729 In your VOIP profiles, we suggest you use either the G.723 codec or the G.729 codec, but not both, and it should match your low-bitrate-codec selection. |
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